Course Introduction：PHP PDO Statement Parameter Limitations: Table and Column NamesPrepared statements in PHP Data Objects (PDO) provide enhanced security by...
2024-12-29 comment 0 670
Course Introduction：Secure database updates with PHP prepared statements, preventing SQL injections. Proper parameter binding and data type alignment ensure data integrity and security.
2024-10-21 comment 0 456
Course Introduction：Laravel collection is an advanced encapsulation of PHP arrays, providing chained calling methods to process data. It is implemented through the Illuminate\Support\Collection class, simplifying filtering, mapping, sorting and other operations. For example, filtering users older than 25 and sorting by name requires only one line of code. Common uses include: 1. Create a collection through collect() function or model query; 2. Use map(), filter(), pluck() and other methods to process data; 3. Support chain calls to improve code readability; 4. Pay attention to collection immutability, return value type and how to use it in Blade templates. Mastering these techniques can significantly improve development efficiency.
2025-07-24 comment 0 734
Course Introduction：To ensure the security of user input in PHP, a cleaning function needs to be written to process input. The specific methods are as follows: 1. Use filter_var to perform basic cleaning, such as filtering HTML tags; 2. Select the corresponding filtering method according to the input type (such as mailbox, URL, integer, text); 3. Use batch processing functions for multi-field input to improve efficiency; 4. Pay attention to the fact that the back-end verification cannot rely on the front-end, avoid blacklisting strategies, and combine parameterized query to prevent SQL injection, and clean data according to the context when output.
2025-07-22 comment 0 299
Course Introduction：The security risks of PHP sessions mainly include session hijacking, session fixation, session prediction and session poisoning. 1. Session hijacking can be prevented by using HTTPS and protecting cookies. 2. Session fixation can be avoided by regenerating the session ID before the user logs in. 3. Session prediction needs to ensure the randomness and unpredictability of session IDs. 4. Session poisoning can be prevented by verifying and filtering session data.
2025-04-28 comment 0 905
Course Elementary 13825
Course Introduction：Scala Tutorial Scala is a multi-paradigm programming language, designed to integrate various features of object-oriented programming and functional programming.
Course Elementary 82364
Course Introduction："CSS Online Manual" is the official CSS online reference manual. This CSS online development manual contains various CSS properties, definitions, usage methods, example operations, etc. It is an indispensable online query manual for WEB programming learners and developers! CSS: Cascading Style Sheets (English full name: Cascading Style Sheets) is an application used to express HTML (Standard Universal Markup Language).
Course Elementary 13182
Course Introduction：SVG is a markup language for vector graphics in HTML5. It maintains powerful drawing capabilities and at the same time has a very high-end interface to operate graphics by directly operating Dom nodes. This "SVG Tutorial" is intended to allow students to master the SVG language and some of its corresponding APIs, combined with the knowledge of 2D drawing, so that students can render and control complex graphics on the page.
Course Elementary 24630
Course Introduction：In the "AngularJS Chinese Reference Manual", AngularJS extends HTML with new attributes and expressions. AngularJS can build a single page application (SPAs: Single Page Applications). AngularJS is very easy to learn.
Course Elementary 27490
Course Introduction：Go is a new language, a concurrent, garbage-collected, fast-compiled language. It can compile a large Go program in a few seconds on a single computer. Go provides a model for software construction that makes dependency analysis easier and avoids most C-style include files and library headers. Go is a statically typed language, and its type system has no hierarchy. Therefore users do not need to spend time defining relationships between types, which feels more lightweight than typical object-oriented languages. Go is a completely garbage-collected language and provides basic support for concurrent execution and communication. By its design, Go is intended to provide a method for constructing system software on multi-core machines.
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